/Engine/Source/Runtime/SlateCore/Public/Types/Attributes/SlateAttributeBase.inl
Bind the SlateAttribute to the Getter function. (If enabled) Update the value from the Getter. If the value is different, then invalidate the widget. The SlateAttribute will now be updated every frame from the Getter.
void Bind ( ContainerType & Widget, [FGetter](API\Runtime\SlateCore\Types\Attributes\TSlateAttributeBase\FGetter) && Getter )